One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(10,14)(15,16)(19,24)(20,22)(25,26,28,30)(27,31,32,29)(9,10)(11,15)(12,16)(13,14)(17,18,21,23)(19,22,24,20)(27,32)(29,31)(1,2)(3,6)(4,5)(7,8)(9,11,13,12)(10,15,14,16)(17,19)(18,22)(20,23)(21,24)(25,27,28,32)(26,29,30,31)(1,3,4,7)(2,6,5,8)(9,10)(11,15)(12,16)(13,14)(17,20,21,22)(18,19,23,24)(1,2)(3,6)(4,5)(7,8)(9,12,13,11)(10,15,14,16)(17,19)(18,22)(20,23)(21,24)(25,26)(27,29)(28,30)(31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.